Chat history gets truncated during message-related operations

[s97712]

App Version

Latest version

API Provider

Anthropic

Model Used

Claude 4 Sonnet

Roo Code Task Links (Optional)

No response

🔁 Steps to Reproduce

Chat history is frequently truncated when performing the following operations:

• Deleting messages
• Restoring tasks
• Sending new messages
• Other message-related operations

💥 Outcome Summary

Current Behavior

• Chat history gets cut off/truncated unexpectedly during message operations
• Previous conversation context is lost
• Issue occurs frequently

Expected Behavior

• Chat history should remain intact during all message operations
• Previous conversation context should be preserved
• Message operations should not affect existing chat history

📄 Relevant Logs or Errors (Optional)

[roomote]

I'm here to help out the maintainers and am going to investigate this chat history truncation issue. I'll work on identifying the root cause and implementing a fix to ensure chat history remains intact during message operations like deletion, restoration, and sending new messages.

[s97712]

@mrubens This issue has a very significant impact. Can it be arranged/scheduled?

[roomote]

I've submitted a fix for this issue in PR #6934: #6934

Summary of the fix:

The root cause was in the findMessageIndices function in webviewMessageHandler.ts, which was using a 1-second timestamp buffer when searching for messages. This could inadvertently match and delete unrelated messages created within that time window.

Changes made:

1. Exact timestamp matching: Changed findMessageIndices to use exact timestamp matching instead of the 1-second buffer
2. Value field support: Added support for matching messages by their value field for proper message references
3. Enhanced validation: Added safeguards to prevent deletion of critical messages
4. Better error handling: Improved handling of edge cases when messages don't exist

The fix ensures that only the intended messages are deleted or edited, preventing accidental loss of conversation context.

CI checks are currently running on the PR.